```JSON
{
  "title": "towel",
  "size": "XL"
}
```

Sie erhalten eine Response, die Ihnen sagt, dass die Daten ungültig sind, und welche den empfangenen Body enthält.

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    }
  ],
  "body": {

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

You will receive a response telling you that the data is invalid containing the received body:

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    }
  ],
  "body": {

	MOVFW	CPSR, R2           // ERROR "illegal combination"
	MOVDW	R1, CPSR           // ERROR "illegal combination"
	MOVFW	R1, CPSR           // ERROR "illegal combination"
	BFX	$12, $41, R2, R3   // ERROR "wrong width or LSB"
	BFX	$12, $-2, R2       // ERROR "wrong width or LSB"
	BFXU	$40, $4, R2, R3    // ERROR "wrong width or LSB"
	BFXU	$-40, $4, R2       // ERROR "wrong width or LSB"

    testRotate(new float[] {1, 2, 3}, -3, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, -2, new float[] {3, 1, 2});
    testRotate(new float[] {1, 2, 3}, -1, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, 0, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, 1, new float[] {3, 1, 2});
    testRotate(new float[] {1, 2, 3}, 2, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, 3, new float[] {1, 2, 3});

    testRotate(new int[] {1, 2, 3}, -3, new int[] {1, 2, 3});
    testRotate(new int[] {1, 2, 3}, -2, new int[] {3, 1, 2});
    testRotate(new int[] {1, 2, 3}, -1, new int[] {2, 3, 1});
    testRotate(new int[] {1, 2, 3}, 0, new int[] {1, 2, 3});
    testRotate(new int[] {1, 2, 3}, 1, new int[] {3, 1, 2});
    testRotate(new int[] {1, 2, 3}, 2, new int[] {2, 3, 1});
    testRotate(new int[] {1, 2, 3}, 3, new int[] {1, 2, 3});

    testRotate(new double[] {1, 2, 3}, -2, new double[] {3, 1, 2});
    testRotate(new double[] {1, 2, 3}, -1, new double[] {2, 3, 1});
    testRotate(new double[] {1, 2, 3}, 0, new double[] {1, 2, 3});
    testRotate(new double[] {1, 2, 3}, 1, new double[] {3, 1, 2});
    testRotate(new double[] {1, 2, 3}, 2, new double[] {2, 3, 1});
    testRotate(new double[] {1, 2, 3}, 3, new double[] {1, 2, 3});

    testRotate(new float[] {1, 2, 3}, -3, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, -2, new float[] {3, 1, 2});
    testRotate(new float[] {1, 2, 3}, -1, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, 0, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, 1, new float[] {3, 1, 2});
    testRotate(new float[] {1, 2, 3}, 2, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, 3, new float[] {1, 2, 3});

    testRotate(new long[] {1, 2, 3}, -3, new long[] {1, 2, 3});
    testRotate(new long[] {1, 2, 3}, -2, new long[] {3, 1, 2});
    testRotate(new long[] {1, 2, 3}, -1, new long[] {2, 3, 1});
    testRotate(new long[] {1, 2, 3}, 0, new long[] {1, 2, 3});
    testRotate(new long[] {1, 2, 3}, 1, new long[] {3, 1, 2});
    testRotate(new long[] {1, 2, 3}, 2, new long[] {2, 3, 1});
    testRotate(new long[] {1, 2, 3}, 3, new long[] {1, 2, 3});

{!../../docs_src/handling_errors/tutorial005.py!}

```

现在试着发送一个无效的 `item`，例如：

```JSON
{
  "title": "towel",
  "size": "XL"
}

```

收到的响应包含 `body` 信息，并说明数据是无效的：

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    }
  ],
  "body": {

    assertNextPermutation(newArrayList(1, 1, 2), permutations);
    assertNextPermutation(newArrayList(1, 2, 1), permutations);
    assertNextPermutation(newArrayList(2, 1, 1), permutations);
    assertNextPermutation(newArrayList(2, 1, 1), permutations);
    assertNextPermutation(newArrayList(1, 2, 1), permutations);
    assertNextPermutation(newArrayList(1, 1, 2), permutations);
    assertNoMorePermutations(permutations);